Question

请教EditText刷新的问题

Answer 1

private void showFileChooser() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("*/*");
intent.addCategory(Intent.CATEGORY_OPENABLE);

try {
startActivityForResult(
Intent.createChooser(intent, "Select a txt File to import(one phone one line)"),
FILE_SELECT_CODE);
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(this, "Please install a File Manager.",
Toast.LENGTH_SHORT).show();
}
}

Answer 2

自定义一个·EditText的派生类，LineEditText，在LineEditText类的OnDraw函数中实现画一条下划线的功能